Nearly 50m Facebook accounts were compromised by an attack that gave hackers the ability to take over users’ accounts, Facebook revealed on Friday.

The breach was discovered by Facebook engineers on Tuesday 25 September, the company said, and patched on Thursday. Users whose accounts were affected will be notified by Facebook. Those users will be logged out of their accounts and required to log back in.
According to the head of Facebook"s Department of Security, the shortcomings have already been eliminated, however, the company does not specify which country citizens have become the potential victims of cyber attacks.